July 30 (Reuters) - Sri Lankan shares edged lower for a third straight session on Thursday, dragged down by losses in communication services stocks.
** The benchmark CSE All Share Index closed 0.12% lower at 5,088.10.
** John Keells Holdings Plc and Dialog Axiata were the biggest drags on the index, shedding 1.3% and 1.8%, respectively.
** Shares of C T Holdings and Ceylinco Insurance rose 9.1% and 5.6%, respectively, and were among the top boosts to the index.
** Foreign investors were net sellers, offloading 343.2 million Sri Lankan rupees ($1.85 million) worth of shares, according to exchange data.
** Trading volume on the CSE All Share Index fell to 34.1 million shares, from 43.5 million in the previous session.
** Equity market turnover was 1.07 billion Sri Lankan rupees.
** The Sri Lankan rupee was quoted at 185.60 against the U.S. dollar by 1134 GMT, according to Refinitiv data.
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** For a report on major currencies, click ($1 = 185.6000 Sri Lankan rupees) (Reporting by Tanvi Mehta in Bengaluru; Editing by Aditya Soni)